Rotary drum grater



FIG. 1 is a front view of a rotary drum grater of my new design;

FIG. 2 is a rear view of the rotary drum grater thereof;

FIG. 3 is a top view of the rotary drum grater thereof;

FIG. 4 is a bottom view of the rotary drum grater thereof;

FIG. 5 is a left side view of the rotary drum grater thereof;

FIG. 6 is a right side view of the rotary drum grater thereof; and,

FIG. 7 is a perspective view of the rotary drum grater thereof. 

CLAIM The ornamental design for a rotary drum grater, as shown and described. 